Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
n the zinc or copper,and the nerves of sense are the electiv-scope. The tigure represents the simplest formof a voltaic battery. It consists of a pieceof copper ((•) and a piece of zinc (z). partlyiitimersed in a weak solution of sulphuricacid, resting in direct contact at the top.or united bv… … ELEVTHICITY. 383 two electrical currents will be mi up, flowin;:^ in opposite directions, u8indicated by the two systems of arrows, in either of the two couplesin the figure. The positive f]iii<l flows from the zinc to tlie copper in the liquid andfrom the copper to the zinc in the air, as…
Physics · Astronomy
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